National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

Sacramento Mather Airport (KMHR)

Lat: 38.55996°NLon: 121.28397°WElev: 92.0ft.

Mostly Cloudy

57°F

14°C

Humidity 93%
Wind Speed ESE 8 MPH
Barometer 29.66 in (1004.4 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 24 Dec 02:30 PM PST
Extended Forecast for

Mather Afb CA

Flood Watch December 24, 02:50pm until December 26, 04:00pm
High Wind Warning December 24, 02:50pm until December 25, 04:00pm
Click here for hazard details and duration
Flood Watch
High Wind Warning
  •  
    Flood Watch December 24, 02:50pm until December 26, 04:00pm
    High Wind Warning December 24, 02:50pm until December 25, 04:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 58 °F

    Showers
    Likely

  • Tonight

    Tonight: Rain and possibly a thunderstorm before 3am, then rain between 3am and 4am, then showers after 4am. Low around 53. Breezy, with a south southeast wind 20 to 26 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 53 °F

    Showers and
    Breezy

  • Christmas Day

    Christmas Day: Showers and thunderstorms before 3pm, then showers and possibly a thunderstorm between 3pm and 4pm, then rain after 4pm. High near 55. Breezy, with a south wind 23 to 26 mph, with gusts as high as 41 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 55 °F

    Showers and
    Breezy

  • Thursday Night

    Thursday Night: Rain before 7pm, then showers and possibly a thunderstorm after 7pm. Low around 49. Breezy, with a south wind 18 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 49 °F

    Showers and
    Breezy

  • Friday

    Friday: Rain. High near 53. South southeast wind 17 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.

    High: 53 °F

    Rain

  • Friday Night

    Friday Night: Rain likely, mainly before 10pm. Mostly cloudy, with a low around 44. Chance of precipitation is 70%.

    Low: 44 °F

    Rain Likely
    then Chance
    Rain

  • Saturday

    Saturday: A 20 percent chance of rain before 10am. Mostly sunny, with a high near 51.

    High: 51 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

This Afternoon
A chance of rain before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 58. South southeast wind around 16 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Rain and possibly a thunderstorm before 3am, then rain between 3am and 4am, then showers after 4am. Low around 53. Breezy, with a south southeast wind 20 to 26 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Christmas Day
Showers and thunderstorms before 3pm, then showers and possibly a thunderstorm between 3pm and 4pm, then rain after 4pm. High near 55. Breezy, with a south wind 23 to 26 mph, with gusts as high as 41 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Rain before 7pm, then showers and possibly a thunderstorm after 7pm. Low around 49. Breezy, with a south wind 18 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Rain. High near 53. South southeast wind 17 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Friday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 44. Chance of precipitation is 70%.
Saturday
A 20 percent chance of rain before 10am. Mostly sunny, with a high near 51.
Saturday Night
Mostly clear, with a low around 37.
Sunday
Mostly sunny, with a high near 49.
Sunday Night
Partly cloudy, with a low around 36.
Monday
Mostly sunny, with a high near 49.
Monday Night
Partly cloudy, with a low around 36.
Tuesday
Mostly sunny, with a high near 50.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mather Afb CA
 38.56°N 121.29°W (Elev. 89 ft)
Last Update:
1:21 pm PST Dec 24, 2025
Forecast Valid:
2pm PST Dec 24, 2025-6pm PST Dec 30, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation